BASALT

Palladio

Stone type prefix: B


Geological Outline

Basalt is the most common constituent of the earth’s crust and is found in two main derivatives of cooled magma − columnar (such as the Giants Causeway) or lava plateaus. The material has very little grain due to its original low viscosity when in its molten state.
Occasionally, zeolites and silicas may be combined within the Basalt. Basalt is hard and virtually non porous.

Traditional Uses

Basalt’s extremely dense surface and hardness made it a favourite stone for cobbles and setts where iron shod horses and iron wheeled carts would be constantly in use; so one finds it as an historic material in docks, coal mines, shipyards and the streets of mercantile cities. It is usually only available in small plan sizes which limits its appeal for some design applications.

Stone Type Code Stone Colour Available Finishes
BLeipzigGrey/BlackRA, RS, DS, P, FP, FF, A

Products

Small pavers, setts, cubes, cobbles, small masonry blocks.

Finishes Codes
DSDiamond SawnFFlamedFPFine pickedRARiven, all faces
SBSandblastedFFFair pickedRSRiven and sawn edgesAAxed
TTumbledHHonedPPolished  

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